16226730 has 160 divisors (see below), whose sum is σ = 49762944. Its totient is φ = 3763584.

The previous prime is 16226729. The next prime is 16226737. The reversal of 16226730 is 3762261.

It is a happy number.

16226730 is a `hidden beast` number, since 1 + 622 + 6 + 7 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 16226694 and 16226703.

It is not an unprimeable number, because it can be changed into a prime (16226737) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 242157 + ... + 242223.

Almost surely, 2^16226730 is an apocalyptic number.

16226730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16226730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24881472).

16226730 is an abundant number, since it is smaller than the sum of its proper divisors (33536214).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16226730 is a wasteful number, since it uses less digits than its factorization.

16226730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 16226730 is about 4028.2415518437. The cubic root of 16226730 is about 253.1688895089.

Adding to 16226730 its reverse (3762261), we get a palindrome (19988991).

The spelling of 16226730 in words is "sixteen million, two hundred twenty-six thousand, seven hundred thirty".